Umesh Krishnaswamy | 345ee99 | 2012-12-13 20:29:48 -0800 | [diff] [blame] | 1 | /** |
| 2 | * Copyright 2011, Big Switch Networks, Inc. |
| 3 | * Originally created by David Erickson, Stanford University |
| 4 | * |
| 5 | * Licensed under the Apache License, Version 2.0 (the "License"); you may |
| 6 | * not use this file except in compliance with the License. You may obtain |
| 7 | * a copy of the License at |
| 8 | * |
| 9 | * http://www.apache.org/licenses/LICENSE-2.0 |
| 10 | * |
| 11 | * Unless required by applicable law or agreed to in writing, software |
| 12 | * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT |
| 13 | * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the |
| 14 | * License for the specific language governing permissions and limitations |
| 15 | * under the License. |
| 16 | **/ |
| 17 | |
| 18 | package net.floodlightcontroller.storage; |
| 19 | |
| 20 | /** Predicate class to specify rows by equality or comparison operations |
| 21 | * of column values. The Storage API uses the special column name of "id" |
| 22 | * to specify the primary key values for the row. |
| 23 | * |
| 24 | * @author rob |
| 25 | */ |
| 26 | public class OperatorPredicate implements IPredicate { |
| 27 | |
| 28 | public enum Operator { EQ, LT, LTE, GT, GTE }; |
| 29 | |
| 30 | private String columnName; |
| 31 | private Operator operator; |
| 32 | private Comparable<?> value; |
| 33 | |
| 34 | public OperatorPredicate(String columnName, Operator operator, Comparable<?> value) { |
| 35 | this.columnName = columnName; |
| 36 | this.operator = operator; |
| 37 | this.value = value; |
| 38 | } |
| 39 | |
| 40 | public String getColumnName() { |
| 41 | return columnName; |
| 42 | } |
| 43 | |
| 44 | public Operator getOperator() { |
| 45 | return operator; |
| 46 | } |
| 47 | |
| 48 | public Comparable<?> getValue() { |
| 49 | return value; |
| 50 | } |
| 51 | } |